Mooring device



M y 1951 F. W.'COFFING 2,550,913

MOORING DEVICE Filed April 15. 1947 awe/144m, RED/wax M4 C'0Ff7/V6 Patented May 1, 1951 UNITED STATES PATENT orrrcs; Moonmo novice Fredrickw. oow na me, 111. Applicationn riris, 1947,1Serial Nurture I to a mooring: system. for a The chief object of. the presentinvention. isto provide a mooring, structure: for: the mooring of boats; so that a person can. readily enter and leave the boat by merely stepping out of the same onto a dock, pier, breakwater; etc., and which boat will be. so moored that not, only will: it rise and. fall with the tide, but. if it: should fill due to wave action or a leak, the boat will. not sink, and. of course, when properly moored the. boat will not rub or strike the dock, pier, etc, to which it may be then moored.

The. chief feature of the present, invention resides in providing in combination with an upvright a. boom hingedly mounted adjacent same,

and a supporting member in the form of a chain connecting the upright and. boom to limit: the

- extent of lowering of the boom, there beingv proincluded with the supporting member, the boom supporting a pulley, in. turn supporting a boat connected line, which line. can betied to the boom near its hinge pivot. axis or to. the. boom, support adjacent thereto. 1

Other objects and features, or the invention will be set forth more. fully hereinaften.

The full nature of the invention will be under stood from the accompanying drawings and the following description and claims: I In the drawings the figure is a perspective view of the end of a pier provided with apairofbooms, one, being shown, in theextended' position and the other being shown. in.- the withdrawn or collapsed position, a boat operativelyassociated therewith, the tie lines;- and the, springecable structures associated therewith.

In the figure, lit/and. lll indicate uprights such as projecting piles forming a part of, a support such 'as a pier or dock having stringers-12,; plank ing I3 and cross member l4. atj the, end. There are provided two mooring structures l5'-| 6, each 2 flexible material, suitably secured together as at I1, the former being extended as at 18. This portion mounts,v an anchorage l9 and a swivel eye 20, the latter supporting pulley housing; 2|", the wheel 22 therein supporting rope or cable 23.

The, outer end of rope 23 is arranged. to; be

H secured to bow anchorage 24 of the boat 25. The

1 rope, anchor member or cleat 2.1 to which the land stern may be similarly anchored by stern anchorage 26 on. the boat. On the pier or dock adjacent, post It or on member I 3 there is fixed end of ropev 23 maybe secured.

Each memberl5 and It may be independently andhingedly mounted on horizontal axes as at 28 and 29 respectively to the support or pier.

"= The; hingeconnection is such as to permit the outer ends, of the booms to swing freely in verti-r cal directions, both. above and below the: level. of the pier or wharf. If desired the adjacent, endsv of the members l5l6:- may be suitably connected together and the connection double. hinge mount associated with one of the piles. Since thebooms The extended boom comprises member l5 and angular disposed member l6, both of rigid, noned on the pierend or side. To anchorage l9I near the end of boom member I5 is permanently secured to one end- 30' of a supporting member such as link chain 3t. The. other end is secured by a lag screw 32 or a; ram-- rality thereof toupright or pile H forming a partof the support. A tension spring 33 may have one end permanently aflixed to the upright as at 34. and the other end has a. suitable fasten-:- ing device that can detachably connect the spring; to any one of the chain links within reach of the spring. The spring canv have both ends detachablyconnected to the chain. .m'lfhus the-chain and; spring normallysupport;

' the emas wthat it is rqperly sp ed at: all

tin'isQ -As theincoming -tideraises the boat the spring elevates the boom-and takes up'the chain slack so that-the rope; 23;,is; taut "at alltimes, thus holding the beat awayfrom; the pier; etci As; the tide falls the free end of the boom also falls, due. toi the weightofth-e boat attached thereto, this movement being; permitted" bythe spring 33 which at all times compensates. for any tendency toward slack in the chain 3|.

In the, event the boat fills by reason of. rain, waves or a leak and endeavors to sink, all cable slackwis, letout and the spring is extended, the boom then holdinguplthe. connected end ofrthe. boat to prevent sinking thereof. It will be noted that the supporting cable 3|, while permitting the boom to swing below horizontal position, will hold the boom sufliciently high to prevent the boat coming in contact with the wharf or piles when in submerged condition.

As shown in its collapsed position, the boom is tilted upwardly upon its pivotal support and the spring 33 anchored at 34 now is engaged with chain 3| near its post anchored end and the intermediate portion of said spring envelopes the boom to constrain it to vertical position and hold it therein.

Also the cable 23 secured at the land end at 21, adjacent to the hinged connection of the boom, not only passes over pulley wheel 22 on the vertical boom but its boat end is secured to stern anchor 26 on the boat. These anchorages 26 and 24 are centrally disposed at the ends of the boat so that the boat does not tip or tilt but rises and falls with the tide.

As shown in the drawing the stern cable 23 may be drawn inwardly to position the boat stern immediately contiguous to the dock or pier, for getting into and out of the boat or for loading or unloading purposes.

Obviously both booms are normally disposed in the upright position when the boat is not moored at the pier. This removes obstructions from the'channel.

In anchoring the boat it is run up to the dock or pier, the forward cable 23 is pulled through the pulley and tied to the bow anchorage 24. The stem cable 23 is similarly handled and tied to stern anchorage 26. When the occupants leave the boat, the booms are released from the springs 33 and the respective chains at 35 attached to the spring ends at the proper position so that at low tide the boat will be supported 2. In a boat mooring device, a support, a mooring boom pivoted on a generally horizontal axis of appreciable length at its inner end to said support whereby the outer end thereof swings freely in vertical directions, a flexible member connected at one end to the free end of said boom and at its other end to said support above said boom, a spring in said flexible member whereby the latter extends or retracts, and means on the free end of said boom to detachably secure a boat thereto.

3. In a boat mooring device, a support, a mooring boom pivoted on a horizontal axis at its inner end to said support whereby the outer end thereof swings freely in vertical directions, a rigid non-flexible member secured at one end to the outer end of said boom and hingediy connected at its inner end to said support in spaced relation to the pivot of said boo-m thereby resisting lateral movement of said boom, a flexible supporting member connected at one end to the free end of said boom and at its other end to said support above said boom, a yieldable element in 3 said flexible supporting member to enable the latter to extend or retract, and means on the free end of said boom to detachably secure a boat thereto, whereby the boom and a boat secured thereto may rise and fall with the change in a water level.

by the slightly tautened chains, the booms then being extended.

The cables 23 are then tightened up so that the boat is pulled away from the dock. As previously described, if the boat tends to sink, the springs, chains and cables will hold it up and prevent sinking. Also as the tide rises the boat rises therewith and springs 33 hold the booms 4. In a boat mooring device, a support, a mooring boom comprising a pair of rigid members secured together at their outer ends and having their inner ends spaced apart, hinge members connecting said inner ends to said support whereby the outer end of said boom swings freely in vertical directions, a supporting member connected at one end to the free end of said boom and at its other end to said support above said boom, a yieldable element in said supporting progressively elevated in accordance with tide to the docl; by cable 23. The bow boom can then be elevated or left extended as desired and the bow cable cast off.

While the invention has been illustrated and described in great retail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character, reference being bad to appended claims.

The invention claimed is:

1. In a boat mooring device, a support, a. mooring boom pivoted on a generally horizontal axis of appreciable length at its' inner end to said support whereby the outer end thereof swings freely in vertical directions, a supporting member connected at one end to the'free end of said boom and at its other end to said support above said boom, a yieldable element in said supporting 6 member whereby the latter extends or retracts, and means on the free end of said boom to detachably secure a boat thereto.

member to enable the latter to extend or retract, and means on the free end of said boom to detachably secure a boat thereto.

5. In a boat mooring device, a support, a V- I shaped boom, hinges connecting the spaced ends nected at one end to the free end of said boom and at its other end to said support above said boom, a yieldable element in said supporting member to enable the latter to extend or retract, and means on the free end of said boom to detachably secure a boat thereto.

FREDRICK W. COFFING.

REFERENCES CITED UNITED STATES PATENTS Number Name Date 1,116,761 Thompson Nov. 10, 1914 1,184,928 Conners May 30, 1916 1,509,012 Whiting Sept. 16, 1924 2,440,972 Peltier May 4, 1948 

